A computer, at its simplest, is a sophisticated input and outlet machine. But there is only so much it can do. It can't print a document on a piece of paper -- there's a dedicated machine for that ...

We started by looking at binary as a counting system, which it is — but that's not the only thing it can do. Since it's the only thing we can use to communicate with computers, we use it to ...

“We’re seeing the tip of the A.I. tsunami,” said Jeannette Wing, a computer science professor who is executive vice president of research at Columbia University.